Easel



FIG. 1 is a front view of the easel showing my new design, in its open position;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof, the right side being a mirror image;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a bottom view of FIG. 3;

FIG. 6 is a left side view thereof, in its folded position. 

The ornamental design for an easel, as shown and described. 